Whistling signal for fluid delivery hose



Aug. 17, 1937. w. T. OXLEY WHISTLING SIGNAL FOR FLUID DELIVERY HOSEFiled 001:. 28, 1936 Patented Aug. 17, 1937 UNITED STATES WHISTLINGsIGNAIfi FgR FLUID DELKVERY Walter T. Oxley, Fergus Falls, Minn.

Application October 28, 1936, Serial No. 107,993

8Claims.

vice is in the nature of a whistle connected with a source of air supplyunder light pressure and attached to the discharge nozzle of thegasoline delivery hose. Such nozzles are usually in the form of flexibletubes capable of being bent to the best form for insertion into the neckof gasoline tanks; and in the application of the whistling attachmentthereto, the air tube con.- nected for delivery to the whistle is also aflexible structure such as a small rubber hose, the receiving end ofwhich is connected to the source of air supply and is also flexible.

The present invention is in the nature of a modification of orimprovement on the Whistling attachment for fluid delivery hose"disclosed and claimed in my pending application Serial No. 53,455, filedDecember 9, 1935 and 30 allowed Sept. 8, 1936 and now Patent Number Apreferred form and application of the invention is illustrated in theaccompanying drawing wherein like characters indicate like parts 35throughout theseveral views.

, Referring to the drawing;

Fig. 1 is a view chiefly in side elevation showing the whistlingattachment applied to the flexible discharge nozle of a gasoline hosewith the nozzle 40 positioned for delivery into the receiving neck of agasoline tank, such as an automobile tank; portions of the tank beingbroken away and parts shown being in section;

Fig. 2 is a plan view showing the nozzle with 5 some parts broken away;

Fig. 3 is a view partly .in elevation and partly in section on the line3-3 of Fig. 1;

Fig. 4 is a section on the line 4-4 of Fig. 3; and

50 Fig. 5 is a section on the line 5-5 of Fig. 3.

In Fig. 1 the numeral 8 indicates the receiving neck portion a gasolinetank such as employed in automobiles, the numeral I indicates the rigidmetallic tubular portion, and the numeral 8 the 55 flexible portion ofthe gasoline discharge nozzle which, as customary, receives thegasolinefrom the rubber hose or the like, not shown in the drawing. Inthe rigid section 1 of the nozzle is the customary normally closed checkvalve mechanism, 9 which is adapted to be opened by upward pressure on avalve operating trigger Ill, shown as mounted in a yoke H secured tosaid section 7.

In the structure illustrated, the nozzle is provided with a rigidmetallic nozzle tip I2 which, in practice, will be inserted directlyinto the receiving neck 6 or the like of the gasoline tank or receivingreceptacle.

The nozzle attachment proper includes a whistle that is located withinand attached to the interior of the nozzle tip I2 and receives air underpressure from a flexible air supply tube I3 that is extended through theflexible portion 8 of the nozzle and out through one side of.the rigidportion I of said nozzle. At the exterior of the rigid section '7 theflexible air tube i3 is connected to a valve casing it that is rigidlysecured to said section I and receives air under pressure from aflexible hose or tube I that leads from a suitable source of airpressure, and, as shown, through a coupling IE to which a pressure gaugei1 is applied. At the point of junction of tube I5 with coupling I6 is astop cock l8 that is adapted to be opened and closed, atwill.

The valve mechanism in casing l4 may be of any suitable form but, asillustrated and preferably, ls of a type wherein the valve is normallyclosed but is adapted to be opened, at will, by pressure on the head IQof the valve stem 20.

The body 2| of the whistle is preferably a metallic tube having awhistle opening 22 and a grooved core 23. The nozzle tip I2 lsicut awayto expose the whistle opening 22 and is provided with an inwardlypressed portion 24 that forms a. seat for the discharge end of thewhistle tube 2|. The whistle tube 2 I, positioned as best shown in Fig.3, is rigidly secured by solder, brazing or otherwise so that it willmaintain the position in which it is located. Here it is important tonote that the open end of the whistle tube 2i is located considerablyabove or backward of the considerably farther down than shown in Fig. 1,Y

and 6 that the lower end of whistle tube 2| will be" approximately atthe maximum desired level of the gasoline-or fluid to be delivered intothe tank. To render the attachment operative, valve It must be firstopened, but that will not deliver c tank does not close the lower end ofwhistle tube 2i whistle will not be sounded, but when the liquid reachesthe maximum or desired level, it will close the lower end of whistletube, thereby causing the air, under increased pressure, to bedischarged through whistle opening 22, which causes sounding of thewhistle.-

In practice, only a very low air pressure has been found necessary tocause sounding of the whistle when and only when the lower end oi.whistle tube 2| is liquid sealed. In fact, about one pound of pressureis found the best for the purpose.

With the device described, the whistle and connections along thegasoline or fluid discharge nozzle are made through the latter, andhence, are protected against obstructions and leave the nozzle to beoperated in the usual way, free from encumbrances. Of course it will beunderstood that the whistle will be sounded, as above stated,

upon the liquid sealing the lower end of the whistle if and only whenthe valve III is opened by pressure on its head l9. This valve head I9is so located that it is within easy reach of the thumb of the hand thatgrips the nozzle body 1 with the fingers in position to operate triggerill. If desired, instead of using a normally closed valve in casing ii,any other suitable form of valve such, for example, as the stop cock orvalve i8, may be employed. However, the arrangement of the air valve inassociation with the valve operating trigger has many advantages and isthought to be preferable.

From the foregoing it will be understood that 40 the device described iscapable of modification within the scope or the invention hereindisclosed and claimed.

What I claim is: 1. The combination with a fluid delivery nozzlecomprising a rigid upper section, a tubular delivery tip and anintermediate flexible portion, of a whistle having a tubular bodylocated within and attached to said nozzle tip and having a whistleopening exposed for discharge of air at the exterior of said nozzle tip,the lower end of said tubular whistle being normally open, and an airtube extended through the rigid upper section and flexible section ofsaid nozzle and attached to the upper end oi. said whistle tube. 2. Thestructure defined in claim 1 in which the open lower end of the whistletube is materially above the open delivery end of said nomle tip andsaid nozzle tip below the open end of said whistle tube is open for theflow of fluid therethrough.

3. The structure deflned in claim 1 in which the open lower end of thewhistle tube is materially above the open delivery end of said nozzletip and said nozzle tip below the open end'oi said whistle tube is openfor the flow oi fluid therethrough, said nozzle tip having an inwardlypressed semi-tubular portion that forms an extension oi, the whistletube and opening at the exterior of the nonle tip.

4. A nozzle adapted for application to the delivery end of a flexiblehose, a whistle applied to said nozzle and movable therewith, saidwhistle having a normally open lower end located near to the normallyopen delivery end of said nozzle,

and an air supply tube applied to said nozzle and connected to saidwhistle, whereby said nozzle and whistle are made portable as a commonunit, said nozzle being provided at its upper end with a flow controlvalve. and said air tube being provided with a valve located at theexterior of the valve-equipped end of said nozzle and from thenceextended through the interior of the nozzle and connected to the whistletube within the tip of the nozzle.

5. A nozzle adapted for application to the delivery end of a flexiblehose, a whistle applied to said nozzle and movable therewith, saidwhistle having a normally open lower end located near I to the normallyopen delivery end of said nozzle, and an air supply tube applied to saidnozzle and connected to said whistle, whereby said nozzle and whistleare made portable as a common unit, said nozzle being provided at itsupper end with a flow control valve, and said air tube being providedwith a valve located at the exterior of the valve-equipped end of saidnozzle and from thence extended through the interior of the nozzle andconnected to the whistle tube within the tip of the nozzle, theintermediate portion of said nozzle and said air tube being flexible.

'6. A nozzle of the kind described'having a valve-equipped upper end anda tubular discharge tip at its lower end, a whistle located within saidnozzle tip, said nozzle tip having lateral openings, one below the lowerend 01' the whistle and the other at the whistle opening of saidwhistle, and an air tube extended through the nozzle to the upper end ofthe latter and at the exterior thereof having a control valve, theentire device being portable as a unit.

WALTER T. OXLEY.

